NPS 18.0" Schedule 40 Pipe Dimensions
Standard Industrial Pipe Dimensions
Inner Diameter
16.869 in
428.46 mm
Outer Diameter
17.992 in
457.00 mm
Wall Thickness
0.562 in
14.27 mm
Flow Velocity Calculator
Instantly calculate the fluid velocity inside this 18.0" Sch 40 pipe based on volumetric flow rate.
Hydraulic Analysis
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About This Tool
The Pipe Dimensions lookup tool provides standard industrial dimensions for piping. Determine exact inner diameters, outer diameters, and wall thicknesses critical for accurate pressure drop and fluid velocity calculations.